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5.7. Which of the following statements are correct for a port-based VLAN configuration ? Assume the port VID (PVID) of port x is 10 and a frame is received from port x. 在基於埠號的虛擬區域網路架構下，下列哪些敘述是正確的 ? 假設port x的port VID (PVID) 是10，並且由port x上接收到一個訊框。 |
| (a) If the frame is untagged, then the VID of the frame will be 10 如果此訊框未貼標籤，則此訊框的VID為10 | |
| (b) If the frame is already tagged with a VID = 20, then the VID of the frame will be 20. 如果此訊框已貼標籤為VID = 20，則此訊框的VID為20 | |
| (c) If the frame is already tagged with a VID = 20, then the VID of the frame will be changed to 10. 如果此訊框已貼標籤為VID = 20，則將此訊框的VID改為10 | |
| (d) Any station directly connects to port x will belong to VLAN 10. 任何直接連接在port x的主機都會屬於虛擬區域網路 10 | |
| (e) If a “hub” is connected to port x, then all the stations connected to this hub will belong to VLAN 10. 如果有一個 “hub”連接在port x，則所有連接在此hub的主機都屬於虛擬區域網路10 |
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5.8. Consider the following port-based VLAN configuration with 3 bridges/switches. Which of the following statements are correct ? 參考下列3台基於埠號的虛擬區域網路上的交換機/橋接器. 下列哪些敘述是正確的 ?
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| (a) Both the links connecting (bridge 1, bridge 2) and (bridge 1, bridge 3) are trunk link. 連接 (bridge 1, bridge 2) 的鏈路與連接 (bridge 1, bridge 3) 的鏈路都是 “主幹鏈路” | |
| (b) When a station of VLAN 3 sends a broadcast frame, the frame will be processed by all the three bridges. 當VLAN 3的一台主機送出一個廣播訊框時，3台橋接器都會處理到此訊框 | |
| (c) When a station of VLAN 3 sends a broadcast frame, the frame will be processed by bridge 1 and bridge 3. 當VLAN 3的一台主機送出一個廣播訊框時，則此訊框將會被bridge 1和bridge 3處理 | |
| (d) When a station of VLAN 1 sends a broadcast frame, the frame will also be processed by all the three bridges. 當 VLAN1的一台主機送出一個廣播訊框時，3台橋接器都會處理到此訊框 | |
| (e) When a station of VLAN 2 sends a broadcast frame, the frame will also be processed by bridge 1 and bridge 3. 當VLAN 2一台主機送出一個廣播訊框時，則此訊框將會被bridge 1和bridge 3處理 |
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5.9. Which of the following statements are correct for a MAC-based VLAN configuration ? Assume the port VID (PVID) of port x is 10 and a frame with source MAC address (SRC) and destination MAC address (DST) is received from port x. 對基於 MAC 位址的虛擬區域網路架構下，下列哪些敘述是正確的 ? 假設port x的port VID (PVID) 是10，而且由port x接收到一個訊框, 其中來源MAC位址為SRC, 目的地MAC位址為DST。 |
| (a) The VID of the frame will be 10. 此訊框的VID被設為10 | |
| (b) The VID of the frame is the VLAN where the SRC belongs to. 此訊框的VID為SRC所屬的虛擬區域網路 | |
| (c) The VID of the frame is the VLAN where the DST belongs to. 此訊框的VID為DST所屬的虛擬區域網路 | |
| (d) In a MAC-based VLAN environment, all frames are actually untagged with a VLAN ID. 在基於MAC 位址的虛擬區域網路架構下，所有訊框都沒有貼上虛擬區域網路標籤 | |
| (e) A station always belongs to the same VLAN even the connected port of the station is changed dynamically. 即使一台主機變更其所連接的接口，該主機仍然會屬於相同的虛擬區域網路 |
